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ORA-27054錯誤處理

編輯：Oracle教程

今天在虛擬機環境下做實驗，在將rac環境修改為flashback on時，報出了ORA-27054錯誤，錯誤代碼如下：

Errors in file /u01/app/oracle/admin/racdb/udump/racdb2_ora_25551.trc:
ORA-38701: Flashback database log 2 seq 1 thread 2: "/u01/flashback/RACDB/flashback/o1_mf_%u_.flb"
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options

從錯誤描述可以看出，閃回目錄是通過nfs文件系統來實現的，而系統掛載nfs時，采用了錯誤的參數選項，導致oracle報錯。上網查資料，通過文檔359515.1順利解決問題。整理部分內容如下：

RAC

In the table below
Binaries is the shared mount points where the Oracle Home and CRS_HOME is installed.
Datafiles includes Online Logs, Controlfile and Datafiles

Operating System

Mount options for Binaries Mount options for Oracle Datafiles Mount options for CRS Voting Disk and OCR Sun Solaris *

rw,bg,hard,nointr,rsize=32768,

wsize=32768,proto=tcp,

noac,vers=3,suid

rw,bg,hard,nointr,rsize=32768,

wsize=32768,proto=tcp,noac,

forcedirectio, vers=3,suid

rw,bg,hard,nointr,rsize=32768,

wsize=32768,proto=tcp,vers=3,

noac,forcedirectio

AIX (5L) **

rw,bg,hard,nointr,rsize=32768,

wsize=32768,proto=tcp,vers=3,

timeo=600

cio,rw,bg,hard,nointr,rsize=32768,

wsize=32768,proto=tcp,noac,

vers=3,timeo=600

cio,rw,bg,hard,intr,rsize=32768,

wsize=32768,tcp,noac,

vers=3,timeo=600

HPUX 11.23 **** –

rw,bg,vers=3,proto=tcp,noac,

hard,nointr,timeo=600,

rsize=32768,wsize=32768,suid

rw,bg,vers=3,proto=tcp,noac,

forcedirectio,hard,nointr,timeo=600,

rsize=32768,wsize=32768,suid

rw,bg,vers=3,proto=tcp,noac,

forcedirectio,hard,nointr,timeo=600

,rsize=32768,wsize=32768,suid

Linux x86

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp, vers=3,

timeo=600, actimeo=0

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,actimeo=0,

vers=3,timeo=600

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,noac,vers=3,

timeo=600

Linux x86-64 #

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,vers=3,

timeo=600, actimeo=0

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,actimeo=0,

vers=3,timeo=600

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,vers=3,

timeo=600,noac

Linux – Itanium

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,vers=3,

timeo=600, actimeo=0

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,actimeo=0,

vers=3,timeo=600

rw,bg,hard,nointr,rsize=32768,

wsize=32768,tcp,noac,vers=3,

timeo=600

* NFS mount option “forcedirectio” is required on Solaris platforms when mounting the OCR/CRS files when using Oracle 10.1.0.4 or 10.2.0.2 or later (Oracle unpublished bug 4466428)

** AIX is only supported with NAS on AIX 5.3 TL04 and higher with Oracle 10.2.0.1 and later (NetApp)

*** NAS devices are only supported with HPUX 11.23 or higher ONLY

# These mount options are for Linux kernels 2.6 and above for older kernels please check Note 279393.1

Due to Unpublished bug 5856342, it is necessary to use the following init.ora parameter when using NAS
with all versions of RAC on Linux (x86 & X86-64 platforms) until 10.2.0.4. This bug is fixed and included in 10.2.0.4 patchset.
filesystemio_options = DIRECTIO

Single Instance

Operating System

Mount options for Binaries Mount options for Oracle Datafiles

Sun Solaris *

(8, 9, 10)

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

proto=tcp,suid

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,[forcedirectio or llock],

nointr,proto=tcp,suid

AIX (5L) **

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,intr,

timeo=600,proto=tcp

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,cio,intr,

timeo=600,proto=tcp

HPUX 11.23 ****

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,proto=tcp,suid

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,proto=tcp,suid

Linux x86

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,tcp

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,tcp,actime=0*

Linux x86-64 #

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,tcp

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,tcp,actime=0*

Linux – Itanium

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,tcp

rw,bg,hard,rsize=32768,

wsize=32768,vers=3,nointr,

timeo=600,tcp

* actime=0 or noac can be used

參照上文，修改mount參數如下：

[root@node2 bdump]# cat /etc/rc.d/rc.local
#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

service iscsi restart
#start_udev

modprobe hangcheck-timer
mount -t nfs -o rw,bg,noac,hard,nointr,rsize=32768,wsize=32768,nolock,proto=tcp,actimeo=0,vers=3,timeo=600 192.168.2.31:/u01/flashback/ /u01/flashback/

問題成功解決！

另外，在網上查到資料，還可以使用如下方式解決

1：設置事件10298 level 32

alter system set event='10298 trace name context forever,level 32' scope=spfile;

重新啟動數據庫後生效.

2：打補丁:5146667

我沒有試驗，有興趣的朋友可以試試